* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: Arial, sans-serif; background: #f5f5f5; display: flex; justify-content: center; align-items: center; min-height: 100vh; }
.login-container { background: white; padding: 2rem; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.1); width: 300px; }
h2 { text-align: center; margin-bottom: 1.5rem; color: #333; }
input, button { width: 100%; padding: 0.8rem; margin-bottom: 1rem; border: 1px solid #ddd; border-radius: 4px; }
button { background: #007bff; color: white; border: none; cursor: pointer; }
button:hover { background: #0056b3; }
#message { text-align: center; color: red; font-size: 0.9rem; }